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公开(公告)号：US10224964B2
公开(公告)日：2019-03-05
申请号：US15426940
申请日：2017-02-07
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.
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公开(公告)号：US10212012B2
公开(公告)日：2019-02-19
申请号：US15766153
申请日：2016-11-01
Inventor： Sung-Ik Park , Jae-Young Lee , Sun-Hyoung Kwon , Heung-Mook Kim
Abstract: An apparatus and method for generating a broadcast signal frame including preamble for signaling injection level information. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes an injection level controller configured to generate a power reduced enhanced layer signal by reducing a power of an enhanced layer signal; a combiner configured to generate a multiplexed signal by combining a core layer signal and the power reduced enhanced layer signal; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling injection level information corresponding to the injection level controller.
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公开(公告)号：US10177866B2
公开(公告)日：2019-01-08
申请号：US15323944
申请日：2015-07-03
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , R&DB FOUNDATION, KOREA MARITIME AND OCEAN UNIVERSITY
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jeong-Chang Kim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
Abstract: A broadcast signal transmission apparatus and method using layered division multiplexing are disclosed. A broadcast signal transmission apparatus according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; a frame builder configured to generate a broadcast signal frame using the time-interleaved signal; and an orthogonal frequency division multiplexing (OFDM) transmitter configured to generate a pilot signal that is shared by a core layer corresponding to the core layer signal and an enhanced layer corresponding to the enhanced layer signal.
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184.发明授权公开(公告)号：US10142152B2
公开(公告)日：2018-11-27
申请号：US15556243
申请日：2016-03-04
Inventor： Sung-Ik Park , Jae-Young Lee , Sun-Hyoung Kwon , Heung-Mook Kim
Abstract: An apparatus and method for broadcast signal frame using a bootstrap and a preamble are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a time interleaver configured to generate a time-interleaved signal by performing interleaving on a BICM output signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.
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公开(公告)号：US09806744B2
公开(公告)日：2017-10-31
申请号：US15374609
申请日：2016-12-09
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/2792 , G06F11/1076 , H03M13/1102 , H03M13/1151 , H03M13/1165 , H03M13/255 , H03M13/2739 , H03M13/2778 , H03M13/6552
Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.
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Patent Agency Ranking
公开(公告)号：US09705529B2
公开(公告)日：2017-07-11
申请号：US14719598
申请日：2015-05-22
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/1165 , H03M13/255 , H03M13/2778
Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.
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公开(公告)号：US09698826B2
公开(公告)日：2017-07-04
申请号：US14718839
申请日：2015-05-21
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/1165 , H03M13/255 , H03M13/2778
Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.
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公开(公告)号：US09602136B2
公开(公告)日：2017-03-21
申请号：US14636053
申请日：2015-03-02
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/1165 , H03M13/17 , H03M13/255 , H03M13/27 , H03M13/2778 , H03M13/2792 , H03M13/618 , H03M13/6522
Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.
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189.发明授权公开(公告)号：US12095554B2
公开(公告)日：2024-09-17
申请号：US18165876
申请日：2023-02-07
Inventor： Sung-Ik Park , Jae-Young Lee , Sun-Hyoung Kwon , Nam-Ho Hur , Heung-Mook Kim
CPC classification number: H04L1/0041 , H04J99/00 , H04L1/0057 , H04L1/0071 , H04L5/0014 , H04L5/0075 , H04L27/2626
Abstract: An apparatus and method for transmitting broadcast signal to which channel bonding is applied are disclosed. The apparatus according to the present invention includes an input formatting unit configured to generate baseband packets corresponding to a plurality of packet types using data corresponding to a physical layer pipe; a stream partitioner configured to partition the baseband packets into a plurality of partitioned streams corresponding to the plurality of packet types; BICM units configured to perform error correction encoding, interleaving and modulation corresponding to the plurality of partitioned streams, respectively; and waveform generators configured to generate RF transmission signals corresponding to the plurality of partitioned streams, respectively.
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190.发明公开公开(公告)号：US20240195673A1
公开(公告)日：2024-06-13
申请号：US18582418
申请日：2024-02-20
Inventor： Sung-Ik PARK , Jae-Young Lee , Sun-Hyoung Kwon , Heung-Mook KIM , Nam-Ho Hur
CPC classification number: H04L27/2697 , H03M13/25 , H03M13/27 , H04L1/00 , H04L1/0041 , H04L1/0048 , H04L1/0061 , H04L1/0071 , H04L5/0007 , H04L2001/0098 , H04L27/2601
Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
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